These frames are laser cut in mild steel with all holes in.
They are to Don Youngs derby 4F design
This casting as 20 spokes with crankpin position inline.
Will machine to max 166mm (6.5") and min of 155mm (6.1") .
It will take upto 25mm (1")crank throw.
This is a 10 spoke tender wheel.
It will machine to max of 106mm(4.17") and min of 95mm(3.7")
This is a 10 spoke Bogie wheel.
It will machine to max of 84mm(3.3") and min of 80mm(3.15")
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